Which of the following statements regarding walruses is correct?
A) Their hair is hollow for better insulation.
B) Their sharp claws are used for hauling themselves onto icebergs.
C) Their tusks are used for prying and killing.
D) They have ivory tusks up to 1 meter long.
E) They lack an insulating layer of blubber.
Question 2
Which of the following hydrothermal vent fields builds chimneys of calcium carbonate, instead of the metal sulfides found at typical black smokers?
A) Coaxial
B) Guaymas Basin
C) Lost City
D) Lucky Strike
E) Tubeworm Barbeque
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